Run results for: EGO indexOf vs regex vs RegExp

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.93 Safari/537.36

Browser: Chrome 90

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
lowercase, trim, indexof	2610795.0 Ops/sec
trim, lowercase, indexof	2984035.0 Ops/sec
regex	8268649.5 Ops/sec
lowercase, replace, indexof	1649190.0 Ops/sec
RegExp	1713171.8 Ops/sec
Same RegExp	4205380.5 Ops/sec

Script Preparation code:

var str = "This is a simple test! Over 20 Distinct Floor Plans Modern Quartz Countertops Complete Stainless Steel GE Appliances Moen Fixtures Oval Soaking Tubs Washer and Dryer in Every Home Central Air and Heat Overside Balconies and Patios Fiber-Based Internet Speeds at 25/15, 50/25, and 100/50 (Faster Enterprise Speeds Available). Over 20 Distinct Floor Plans Modern Quartz Countertops Complete Stainless Steel GE Appliances Moen Fixtures Oval Soaking Tubs Washer and Dryer in Every Home Central Air and Heat Overside Balconies and Patios Fiber-Based Internet Speeds at 25/15, 50/25, and 100/50 (Faster Enterprise Speeds Available). Over 20 Distinct Floor Plans Modern Quartz Countertops Complete Stainless Steel GE Appliances Moen Fixtures Oval Soaking Tubs Washer and Dryer in Every Home Central Air and Heat Overside Balconies and Patios Fiber-Based Internet Speeds at 25/15, 50/25, and 100/50 (Faster Enterprise Speeds Available). Over 20 Distinct Floor Plans Modern Quartz Countertops Complete Stainless Steel GE Appliances Moen Fixtures Oval Soaking Tubs Washer and Dryer in Every Home Central Air and Heat Overside Balconies and Patios Fiber-Based Internet Speeds at 25/15, 50/25, and 100/50 (Faster Enterprise Speeds Available). Over 20 Distinct Floor Plans Modern Quartz Countertops Complete Stainless Steel GE Appliances Moen Fixtures Oval Soaking Tubs Washer and Dryer in Every Home Central Air and Heat Overside Balconies and Patios Fiber-Based Internet Speeds at 25/15, 50/25, and 100/50 (Faster Enterprise Speeds Available). Controlled Access Community Podium Lounge with Billiards Table Fitness Facility Professional Conference Room Business Center Private Screening Room Dog Park and Washing Station Secure and Reserved Parking Garage Valet Dry Cleaning This is a simple test! . Controlled Access Community Podium Lounge with Billiards Table Fitness Facility Professional Conference Room Business Center Private Screening Room Dog Park and Washing Station Secure and Reserved Parking Garage Valet Dry Cleaning This is a simple test! . Controlled Access Community Podium Lounge with Billiards Table Fitness Facility Professional Conference Room Business Center Private Screening Room Dog Park and Washing Station Secure and Reserved Parking Garage Valet Dry Cleaning This is a simple test! . Controlled Access Community Podium Lounge with Billiards Table Fitness Facility Professional Conference Room Business Center Private Screening Room Dog Park and Washing Station Secure and Reserved Parking Garage Valet Dry Cleaning On a very large Text string containing Community Amenities or Apartment Amenities";
var searchText = "community amenities";
var ri = new RegExp('community amenities', 'i');

Tests:

lowercase, trim, indexof
var a = str.toLowerCase().trim(); var b = searchText.toLowerCase().trim(); var c = a.indexOf(b) > -1;
trim, lowercase, indexof
var a = str.trim().toLowerCase(); var b = searchText.trim().toLowerCase(); var c = a.indexOf(b) > -1;
regex
var c = /simple/i.test(str);
lowercase, replace, indexof
var a = str.toLowerCase().replace(" ", ""); var b = searchText.toLowerCase().replace(" ", ""); var c = a.indexOf(b) > -1;
RegExp
var c = (new RegExp(searchText, 'i')).test(str);
Same RegExp
var d = ri.test(str)

Run results for: EGO indexOf vs regex vs RegExp

lowercase, trim, indexof

trim, lowercase, indexof

regex

lowercase, replace, indexof

RegExp

Same RegExp